Update the cli to support the new ACL features

[mterron]

Since v0.8 Consul supports a whole new set of ACLs. Consul-cli does not allow you to set up anything but service and key ACLs.

Eg:
--rule="node::write" --rule="agent::write" --rule="session::write"

[mterron]

Anything on Agent and Session?

[Theaxiom]

Nope, I will re-open this issue.